# 2.4.jl
# 2020-11-03
# $Id: 2.4.jl 1.1 2020/11/03 00:00:00 s Exp $

f(x) = -1 + x + x^2
df(x) = 1 + 2x

λ0 = 1
λ1 = λ0 - f(λ0) // df(λ0)
λ2 = λ1 - f(λ1) // df(λ1)
λ3 = λ2 - f(λ2) // df(λ2)
λ4 = λ3 - f(λ3) // df(λ3)

println("2.4.jl")
println("λ0 = ", λ0, "\t\t\t= ", round(λ0; digits=3))
println("λ1 = ", λ1, "\t\t= ",   round(λ1; digits=3))
println("λ2 = ", λ2, "\t\t= ",   round(λ2; digits=3))
println("λ3 = ", λ3, "\t\t= ",   round(λ3; digits=3))
println("λ4 = ", λ4, "\t= ",     round(λ4; digits=3))
# eof